"被说服"可以用英文表示为"to be convinced"或"to be persuaded"。这两个词的意思相近，都表示被某人或某些事情使信服或感受到信服。

来源：

"to be convinced"来源于拉丁语"convinci"，意思是"使确信"。
"to be persuaded"来源于拉丁语"persuadere"，意思是"使服从"。

英文例句：

"I was convinced by his argument and decided to invest in his company."（他的论点使我信服，我决定投资他的公司。）
"She was persuaded by her friend to try the new restaurant."（她被朋友说服去尝试新餐厅。）

注意："to be convinced"和"to be persuaded"后面常常会接"by"，表示被什么东西或什么人说服。